Example: suppose you develop a custom plugin that denies Pods that have a `schedulable=false` label. 

- Revert Go version used to build Kubernetes to 1.23.0 ([#127861](https://github.com/kubernetes/kubernetes/pull/127861), [@xmudrii](https://github.com/xmudrii)) [SIG Release and Testing]

- Improved the efficiency of NodeAdded QueueingHint by registering UpdateNodeTaint event for plugins that have NodeAdded event but don't have UpdateNodeTaint event. This ensures better requeuing efficiency and prevents Pods from being stuck in the unschedulable pod pool.

  }

  private ListenerCallQueue.Event<Object> incrementingEvent(
      Multiset<Object> counters, Object expectedListener, int expectedCount) {
    return incrementingEvent(counters, multiset(expectedListener, expectedCount));
  }

  private ListenerCallQueue.Event<Object> incrementingEvent(
      Multiset<Object> counters, Multiset<Object> expected) {
    return new ListenerCallQueue.Event<Object>() {
      @Override

  }

  private ListenerCallQueue.Event<Object> incrementingEvent(
      Multiset<Object> counters, Object expectedListener, int expectedCount) {
    return incrementingEvent(counters, multiset(expectedListener, expectedCount));
  }

  private ListenerCallQueue.Event<Object> incrementingEvent(
      Multiset<Object> counters, Multiset<Object> expected) {
    return new ListenerCallQueue.Event<Object>() {
      @Override

    // shouldn't break in cases where reflection is missing/broken.
    if (thrownAtomicReferenceFieldUpdaterFailure != null) {
      log.get().log(SEVERE, "UnsafeAtomicHelper is broken!", thrownUnsafeFailure);
      log.get()
          .log(
              SEVERE,
              "AtomicReferenceFieldUpdaterAtomicHelper is broken!",
              thrownAtomicReferenceFieldUpdaterFailure);
    }
  }

    // shouldn't break in cases where reflection is missing/broken.
    if (thrownAtomicReferenceFieldUpdaterFailure != null) {
      log.get().log(SEVERE, "UnsafeAtomicHelper is broken!", thrownUnsafeFailure);
      log.get()
          .log(
              SEVERE,
              "AtomicReferenceFieldUpdaterAtomicHelper is broken!",
              thrownAtomicReferenceFieldUpdaterFailure);
    }
  }

 * <p>This class has limited support for cancellation and other "early completions":
 *
 * <ul>
 *   <li>While calls to {@code submit} and {@code submitAsync} return a {@code Future} that can be
 *       cancelled, cancellation never propagates to a task that has started to run -- neither to
 *       the callable itself nor to any {@code Future} returned by an {@code AsyncCallable}.

    // Log after all static init is finished; if an installed logger uses any Futures methods, it
    // shouldn't break in cases where reflection is missing/broken.
    if (thrownReflectionFailure != null) {
      log.get().log(Level.SEVERE, "SafeAtomicHelper is broken!", thrownReflectionFailure);
    }
  }

  AggregateFutureState(int remainingFutures) {
    this.remainingField = remainingFutures;
  }

     * Level#SEVERE} message indicating the potential deadlock, which includes stack traces
     * illustrating the cycle in lock acquisition order.
     */
    WARN {
      @Override
      public void handlePotentialDeadlock(PotentialDeadlockException e) {
        logger.get().log(Level.SEVERE, "Detected potential deadlock", e);
      }
    },

    /**